Verilink SCM (880-503300-001) Product Manual - Manual (Page 57)

Circuit Manager
Verilink SCM 5-3
When the first QUAD T1-IMUX circuit is activated, the SCM looks for
the whole available bus group and reserves it for the IMUX. When
the last QUAD T1-IMUX circuit is deactivated, the SCM releases the
reserved bus group.
Circuit Manager Functions
The Circuit Manager performs the following functions:
• Preserves and restores circuits after a node is powered down.
• Builds and manages circuits.
• Preserves the configuration and circuits associated with a
module. For example, if a module goes bad and is replaced by
a new module with the same equipment ID (front panel model
number), the new module will obtain the configuration of the
old module and inherit any associated circuits.
• Records configurations of modules installed in a node.
• Detects and resolves circuit resource conflicts.
Alarm Handling The Circuit Manager uses alarm information received by the SCM
module. Circuit Manager uses information:
• module present
• module absent
Module
Configuration
Updates
The Circuit Manager polls one module every six seconds to retrieve
every module’s configuration in the node, continuously updating
the Circuit Manager and configuration databases.
Circuit Manager Menu
From the SCM Main Menu, select the Circuit Manager Menu by
selecting b.